package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioPropeties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioClient minioClient;

    @Autowired
    private MinioPropeties minioPropeties;
    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            boolean b = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioPropeties.getBucketName()).build());
                if (!b){
                    minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioPropeties.getBucketName()).build());
                    minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioPropeties.getBucketName()).config(createBucketPolicyConfig(minioPropeties.getBucketName())).build());

                }
            String filename = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" + UUID.randomUUID() + "-" + file.getOriginalFilename();

                minioClient.putObject(PutObjectArgs.builder().bucket(minioPropeties.getBucketName()).stream(file.getInputStream(),file.getSize(),-1).object(filename).contentType(file.getContentType()).build());
              String url=minioPropeties.getEndpoint()+"/"+minioPropeties.getBucketName()+"/"+filename;

            return url;
        }



    private String createBucketPolicyConfig(String bucketName) {

        return """
                  {
                    "Statement" : [ {
                      "Action" : "s3:GetObject",
                      "Effect" : "Allow",
                      "Principal" : "*",
                      "Resource" : "arn:aws:s3:::%s/*"
                    } ],
                    "Version" : "2012-10-17"
                  }
                  """.formatted(bucketName);
    }
}
